Select the best option:
For a ball moving on a smooth frictionless surface, choose the appropriate option that will make the following statements physically correct.
(i) What happens to the velocity of the ball when no resultant force acts on it?
(ii) What happens to the ball’s velocity when a net force is applied in the direction of motion?
(iii) If a force acts on the ball opposite to its direction of motion, what will happen to the magnitude of its velocity?